These Manley NexTek valve springs are better-designed valve springs using state-of-the-art machinery for purpose-built racing engines. They're manufactured from super-clean, high-tensile chrome silicon steel and are shot-peened to MIL specs for maximum fatigue life. They feature a proprietary, multi-step heat-treating that minimizes load loss and have computer-aided modeling to minimize valve bounce and valve gear separation. The Manley NexTek valve springs are smaller diameter and lightweight, allowing engines to rev higher faster. They have an extended tip thickness designed to eliminate overload breakage, and their tightly controlled open-end flatness reduces valve stem side loading.

More From This Category

MANLEY Lash Cap, .3415 in. Valve Stem, .080 in. Thick, Each

MANLEY Lash Cap, .3415 in. Valve Stem, .080 in. Thick, Each

$6.22

MANLEY Valve Lock, 10 Degree Machined, Bead Loc, Steel, 7mm Stem, Set of 8

MANLEY Valve Lock, 10 Degree Machined, Bead Loc, Steel, 7mm Stem, Set of 8

$77.39

COMP Cams Valve Spring, Dual, 1.460 in. O.D, 403 lbs./in. Rate, 1.195 in. Coil Bind Height, Each

COMP Cams Valve Spring, Dual, 1.460 in. O.D, 403 lbs./in. Rate, 1.195 in. Coil Bind Height, Each

$22.03

COMP Cams Engine Valve Spring Seat, ID Spring Locator, 1.565 in. OD, .535 in. ID, .100 in. Thick, Set of 16

COMP Cams Engine Valve Spring Seat, ID Spring Locator, 1.565 in. OD, .535 in. ID, .100 in. Thick, Set of 16

$126.74

COMP Cams Dual Valve Spring Kit GM L83/L86/LT1/LS7 w/ Tool Steel Retainers

COMP Cams Dual Valve Spring Kit GM L83/L86/LT1/LS7 w/ Tool Steel Retainers

$1,726.14

Crow Cams ECOTEC PERF SPRING KIT

Crow Cams ECOTEC PERF SPRING KIT

$626.49